Genetic and Physiological Features of Reproduction in Prolific Animal

摘要: Genetic and physiological functional relationships between major reproductive parameters were studied in domestic prolific mammals with special reference to selection-induced changes fertility mothering ability ten generations of pigs sino-European Tiameslan composite line, which was first bred France. Based on our hypothesis, balance equations derived describing highly adaptive coadaptations traits. Properties these examined regard artifical directional selection. Selection secretory traits mammary glands shown play a leading role correlated increase biological fertility. Genetically determined regulatory maintained by natural stabilizing selection established fertility, sow milk production, perinatal survival, survival weaning. Thus, system simple complementary characterizing an independent integrative mother–young(s) obtained, had not been previously published. The self-regulated homeostatic system, for the time ever, ensured development suckling piglets, compensatory regulation, stabilization at optimal level (11.6 ± 0.17 piglets birth) actual (10.0 0.08 weaning) line.